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doris/be/src/exprs/string_functions.h
2019-04-29 18:31:24 +08:00

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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#ifndef DORIS_BE_SRC_QUERY_EXPRS_STRING_FUNCTIONS_H
#define DORIS_BE_SRC_QUERY_EXPRS_STRING_FUNCTIONS_H
#include <re2/re2.h>
#include "runtime/string_value.h"
#include "runtime/string_search.hpp"
#include "anyval_util.h"
#include <locale>
#include <sstream>
#include <iomanip>
namespace doris {
class Expr;
class OpcodeRegistry;
class TupleRow;
class StringFunctions {
public:
static void init();
static doris_udf::StringVal substring(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& pos, const doris_udf::IntVal& len);
static doris_udf::StringVal substring(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& pos);
static doris_udf::StringVal left(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& len);
static doris_udf::StringVal right(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& len);
static doris_udf::StringVal space(
doris_udf::FunctionContext* context, const doris_udf::IntVal& len);
static doris_udf::StringVal repeat(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& n);
static doris_udf::StringVal lpad(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& len, const doris_udf::StringVal& pad);
static doris_udf::StringVal rpad(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::IntVal& len, const doris_udf::StringVal& pad);
static doris_udf::IntVal length(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal lower(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal upper(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal reverse(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal trim(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal ltrim(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::StringVal rtrim(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::IntVal ascii(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str);
static doris_udf::IntVal instr(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::StringVal&);
static doris_udf::IntVal locate(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::StringVal&);
static doris_udf::IntVal locate_pos(
doris_udf::FunctionContext* context, const doris_udf::StringVal& str,
const doris_udf::StringVal&, const doris_udf::IntVal&);
static bool set_re2_options(
const doris_udf::StringVal& match_parameter,
std::string* error_str,
re2::RE2::Options* opts);
static void regexp_prepare(
doris_udf::FunctionContext*,
doris_udf::FunctionContext::FunctionStateScope);
static StringVal regexp_extract(
doris_udf::FunctionContext*, const doris_udf::StringVal& str,
const doris_udf::StringVal& pattern, const doris_udf::BigIntVal& index);
static StringVal regexp_replace(
doris_udf::FunctionContext*, const doris_udf::StringVal& str,
const doris_udf::StringVal& pattern, const doris_udf::StringVal& replace);
static void regexp_close(
doris_udf::FunctionContext*,
doris_udf::FunctionContext::FunctionStateScope);
#if 0
static void RegexpMatchCountPrepare(FunctionContext* context,
FunctionContext::FunctionStateScope scope);
static IntVal RegexpMatchCount2Args(FunctionContext* context, const StringVal& str,
const StringVal& pattern);
static IntVal RegexpMatchCount4Args(FunctionContext* context, const StringVal& str,
const StringVal& pattern, const IntVal& start_pos,
const StringVal& match_parameter);
#endif
static StringVal concat(
doris_udf::FunctionContext*,
int num_children,
const StringVal* strs);
static StringVal concat_ws(
doris_udf::FunctionContext*,
const doris_udf::StringVal& sep,
int num_children,
const doris_udf::StringVal* strs);
static IntVal find_in_set(
doris_udf::FunctionContext*,
const doris_udf::StringVal& str,
const doris_udf::StringVal& str_set);
static void parse_url_prepare(
doris_udf::FunctionContext*,
doris_udf::FunctionContext::FunctionStateScope);
static StringVal parse_url(
doris_udf::FunctionContext*,
const doris_udf::StringVal& url,
const doris_udf::StringVal& part);
static StringVal parse_url_key(
doris_udf::FunctionContext*,
const doris_udf::StringVal& url,
const doris_udf::StringVal& key,
const doris_udf::StringVal& part);
static void parse_url_close(
doris_udf::FunctionContext*,
doris_udf::FunctionContext::FunctionStateScope);
static doris_udf::StringVal money_format(doris_udf::FunctionContext* context,
const doris_udf::DoubleVal& v);
static doris_udf::StringVal money_format(doris_udf::FunctionContext* context,
const doris_udf::DecimalVal& v);
static doris_udf::StringVal money_format(doris_udf::FunctionContext* context,
const doris_udf::DecimalV2Val& v);
static doris_udf::StringVal money_format(doris_udf::FunctionContext* context,
const doris_udf::BigIntVal& v);
static doris_udf::StringVal money_format(doris_udf::FunctionContext* context,
const doris_udf::LargeIntVal& v);
struct CommaMoneypunct : std::moneypunct<char> {
pattern do_pos_format() const override { return {{none, sign, none, value}}; }
pattern do_neg_format() const override { return {{none, sign, none, value}}; }
int do_frac_digits() const override { return 2; }
char_type do_thousands_sep() const override { return ','; }
string_type do_grouping() const override { return "\003"; }
string_type do_negative_sign() const override { return "-"; }
};
static StringVal do_money_format(FunctionContext *context, const std::string& v) {
std::locale comma_locale(std::locale(), new CommaMoneypunct ());
std::stringstream ss;
ss.imbue(comma_locale);
ss << std::put_money(v);
return AnyValUtil::from_string_temp(context, ss.str());
};
};
}
#endif